Prosecution Insights
Last updated: April 19, 2026

Examiner: TRAN, BINH Q

Tech Center 3700 • Art Units: 3746 3748

This examiner grants 88% of resolved cases

Performance Statistics

87.9%
Allow Rate
+17.9% vs TC avg
1393
Total Applications
+6.7%
Interview Lift
921
Avg Prosecution Days
Based on 1365 resolved cases, 2023–2026

Rejection Statute Breakdown

5.9%
§101 Eligibility
50.7%
§102 Novelty
28.1%
§103 Obviousness
9.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19174104 EXHAUST TREATMENT METHOD AND APPARATUS HAVING PARTICULATE FILTERS AND SCR Non-Final OA CORNING INCORPORATED
19065517 ELECTRICAL HEATERS FOR EXHAUST AFTERTREATMENT SYSTEMS AND ASSEMBLIES Non-Final OA CORNING INCORPORATED
19085804 DINITROGEN OXIDE PURIFICATION SYSTEM, INTERNAL COMBUSTION ENGINE SYSTEM, AND DINITROGEN OXIDE PURIFICATION METHOD Non-Final OA Yanmar Holdings Co., Ltd.
19080763 ENGINE DEVICE Non-Final OA Yanmar Holdings Co., Ltd.
19112119 ENGINE POWER GENERATION SYSTEM CONTROL DEVICE Non-Final OA Hitachi, Ltd.
18974887 AFTERTREATMENT SYSTEM HEATER CONTROLS Non-Final OA Cummins Inc.
19081694 DECOMPOSITION CHAMBER FOR AFTERTREATMENT SYSTEM Non-Final OA Cummins Emission Solutions Inc.
19065801 EXHAUST AFTERTREATMENT SYSTEM INCLUDING MIXER WITH INJECTOR CONE Non-Final OA Cummins Emission Solutions Inc.
18958817 HYDRAULIC SYSTEM FOR AN AIRCRAFT, HYDRAULIC ARRANGEMENT, AIRCRAFT, AIRCRAFT ARRANGEMENT, AND METHOD FOR TESTING SUCH HYDRAULIC SYSTEM Non-Final OA Airbus Operations GmbH
18847278 Diaphragm Pump Non-Final OA TACMINA CORPORATION
18894925 SURFACE ENHANCEMENT OF A BONDING SURFACE IN A PIEZO ELECTRIC PUMP/VALVE Non-Final OA Boston Scientific Scimed, Inc.
19113121 Turbine Control for Improved Dosing Non-Final OA Cummins Ltd.
19080988 WATER PUMP CONTROL DEVICE Non-Final OA Delta Electronics, Inc.
19069018 DUAL LEG AFTERTREATMENT SYSTEM Non-Final OA Cummins Power Generation Inc.
18693455 EXHAUST PIPE Non-Final OA ISUZU MOTORS LIMITED
18851276 IN-VEHICLE TEMPERATURE ESTIMATION DEVICE Non-Final OA Sumitomo Electric Industries, Ltd.
18862289 SYSTEM OF VALVES FOR CELL CULTURE MACHINE Non-Final OA CELLAVEN
18706861 ZEOLITE CATALYSTS WITH PAIRED HETEROATOMS AND METHODS THEREOF Non-Final OA THE REGENTS OF THE UNIVERSITY OF CALI­FORNIA

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